Work-table.



1. BUCHHEH,

WORK TABLE.

APPLICATIGN FILED MAR. 9, 1918.

,278,584 Patented sept. 10,1918.

2 SHEETS-SHEET 2.

INVENTUH A TTUHNEYS n JOHN BUCHHEIT, 0F BROOKLYN, NEW YORK.

WORK-TABLE.

Application led March 9, 1918.

To all whom it 'may concern:

Be it known that I. JOHN BUGHHEIT, a citizen of the United States, and aresident of the city of New York.y borough of Brooklyn, in the county ofKings and State'of New York, have invented a new and ImprovedlVork-Table, of which the following is a full. clear, and eXactdescription.

rl`his invention relates to work tables such for example as are adaptedespeciallyv for the wrapping of heavy bundles, boxes, packages or thelike, and delivering the same therefrom to a truck or other mechanicalcarrier.

More definitely stated among the objects of the invention is to providea work table designed particularly for wrapping of large this respect.

and 'heavy bundles of printed or unprinted sheets of paper, although theeld of usefulness is not to be unnecessarily'limited in In the ordinarywrapping of heavy bundles of paper in paper mills or warehouses it isusual for a number of wrapvment and ping cords or the like to be laidupon the surface of a table in any suitable arrangenient and then forthe pile of paper to be laid thereon; the wrapper is then obliged topass the cords upward around the bundle and tie or otherwise fasten theends thereof. To do this he is required either to move from one side ofthe table to another around the table or else turn the bundle upon thetable which can be done only with expenditure of much power and time. g

Another object of the invention is to provide a work table having meansto initiate the removal therefrom of a heavy-weight or package or otherobject for delivery to a suitably disposed carrier.

With the foregoing and other objects in View the inventionV consists inthe arrangecombination of parts hereinafter described and' claimed, andwhile the invention is not restricted to the eXact details ofconstruction disclosed or suggested'vherein, still for the purpose ofillustrating a practical embodiment. thereof reference is'had4 to theaccompanying drawings. inl which like reference characters designate'the same,

in the several views; and in whichure 1 1s a vert-ical"longitudinalsection 2.

parts Fig on the line' 1-1 of Fig. Fig. 2 is a plan view especially theconstruction of the turn table and the, lifting rollers carried thereby.

Specification of Letters Patent.

.provided so that where,

of the same showing Y Patented Sept. 10, 1918.

Serial No. 221,474.

Referring now more particularly to the drawings I show at 10 a basewhich may constitute any suitable {iXed'or stationary.

bench, table or other support, preferably of a nature similar to anordinary table having legs 11. The base ispreferably faced at its uppersurface with a sheet metal plate 12, and the center of said plate and-base is provided with a centering device indicated as a bearing cup 13.

Supported upon the base plate 12 and adapted t0 rotate around thevertical axis of the cup 13 is a turn table 1t provided with a centeringfeature,namely,a pin 15 projecting downward into the cup 13 whereby theturn table is held from lateral movement or displacement with respect tothe base and its plate 12. If desired the cooperating featurcs 13 and 15may be interohanged without departing from the spirit of the inventionor its operation.

The turn table has as one of its essential characteristics asubstantially flat. top 16 preferably of rectangular formation in planview, but having its Surface broken by means of aA series ofintersecting grooves 17 and 18 shown as arranged in two groups of threegrooves each.V The two kinds of grooves are in the main preferably ofthe same depth, but the grooves 18 are indicated as having depressionsor pits 1S at the points of intersection with the grooves 17. .Thepurpose ofthese grooves is to accommodate heavy wrapping cords adaptedto be laid across the table top in the manner indicated in dotted lines.in Fig. 1. the cords being thus held in proper position with respect toone another without interference withthe material to 'be wrapped or thelikelihood of damaging any of such material or the covering materialtherefor. The pits 18 are the cords overlap each other there shall be nointerference bei cause of the bundle or material applied to box orsimilar support 2O secured to or constituting a part of the turn table.In order to provide maximum freedom of rotation for the rollers 19 theyare preferably made of frusto-conical form, all the curved surfaces ofwhich converge toward a common point lying within the plane of the plate12 and the vertical axis of the pin 15. By this arrangement I providepractically all rolling friction for the rotation of the turn table andam able to employ a simple flat plate 12 which is most desirable fororiginal cost or installation and for most ellicient'service. The plate12 facing the base 10 makes a strong hence no ing a proper track uponvwhich operate. An operator standing atthe front of the mwork table as atthe leftl of ig. 1 may readily wrap and tie any ordinary packageirrespective of its Weight or size without changing his position, thepackage and turn table being easily rotated around the centering pin 15so as to bring the various portlons or sides of the package into easyreach. Any suitable means, however, may be provided to prevent rotationof the turn table if it is desired at any time to hold it stationary.

From the nature of the work table as applicable for the Wrapping andtying of question or trouble'about providthe rollers 19 heavy bundles orboxes such work being` adapted to be performed readily by boys or menhaving less strength than others it is desirable to provide means foreasily removing the wrapped bundle or box from the turn table. To thisend I provide lifting means whereby evena boy may initiate the ren'iovalof the package from the turn table even though the wrapping cords orropes mayv project below the main surface of the bottom of such package.I

Adjacent to the center of the turn table I provide a pair of parallelslots 21 each having a bottom reinforcement plate 22 constituting aclosure. In each of the slots and supported normally upon said closureplate 22 is provided a cradle 23 having a flat elongated bottom andupright bearing lugs 24 at its ends in which are journaled the endtrunnions of a. roller 26 lying normally wholly within the slot 2l inthe bottom of which lthe cradle is located. vThe side and end walls ofeach slot 2l are preferably ver? tical providing for the verticalmovement of the cradle and roller supported therein. 27 indicates ananti-friction roller journaled for rotation around a fixed axis at theupper rear edge of the turn table. the top of the roller projectingslightly above the top plane of the turn table. i

llach of the closure plates 22 at the botto,m of the turn table isprovided with a pluralitv of holes 2S through or into which a likenumber of uprightl plungcrs 29 are may be rolled protection therefor,and there isv adapted to operate. As shown in Fig. 1 the upper ends ofthe plunger-s simply project into the holes28 against the bottoms of thecradles in which position the plungers constitute means to lock the turntable from rotation. lVhen, however, the plungers are projected upwardby any suitable means they lift the cradles and rollers 26 projectingtheir upper faces above the surface ofthe table whereby any bundle,package, or other object on the table will be lifted so that it freelyover the table and the rear roller 27 upon a truck or other carrier 30.Then the package is thus hoisted the wrapping rope or cord thereon willbe madeto clear the grooves 18 sothat there shall be no obstruction tothe rearward or lateral delivery of the bundle or package.

The means I deem most suitable for controlling the efficiency andconvenience to the operator comprises a pair of rock shafts 31 and-32parallel to each other and in the same horizontal plane in bearings 33beneath the base 10 and between the vertical planes of the slots 21. Ahand lever 34 of any suitable form is fixed at its rear end to the rockshaft 31 and at its front end is provided with a handley 34 which isadapted to operate along an arc shaped the under surface of the base 10within convenient reach of the operator at the front of the machine. 36and 37 indicate a pair of toothed arms meshing with each other and fixedto the respective rock shafts 31 and 32, the free ends of the armsprojecting in opposite directions from each other and from the rockshafts, and each of these arms is provided with a slot 38 for loosepivotal connection at 39 with the lower end of one of the plungers 29.There are provided referably two pairs of these arms 36 and 3i? adjacentto the opposite ends of the rock shafts so that when the operatorgrasping the handle 34 depresses the lever 34 into or toward the dottedline position in Fig. 1 the rock shaft 31 is rotated in the samedirection causing the arms 36 to lift the plungers 29 loosely pivotedthereto. At the of the teeth between the arms 36 and 37 the free ends ofthe arms 37 will be lifted, thereby lifting the plungers 29 pivoted totheir outer ends. The upper ends of the plungers during this operationare guided upward through the holes 28 whereby the cradles 23 will belifted bringing the rollers 26 approximately into the position shownv indotted lines in Fig. 1 or with their upper portions projected above thepla-ne of the 4table y reason of the leverage through the lever 34 a.light operator may readily lift a very heavy load or bundle from thetable. The lever 31 may be locked in this position if desired beneaththe shoulder 40 near the lower end of the guide arc 35. The arms 36operation of the plungers for.

guide 35 shown connected toy same time by virtuev and 37 may bevariously related to each other as to length but by making the arms 37the longer it will be noted that the plungers and roller nearer theoperator will be lifted enough higher than the other plungers and roller'2(3 to place the bundle or package at a slight rearward inclinationwhereby the delivery of the package from the turn table will beautomatically facilitated. lVith the parts as shown in Fig. 1 presumedto be in their normal position with the upper ends of the plungersinterlocking with the plates 22 the turn table will be held fromrotation making it easier under certain conditions for the wrapping ofthe bundle to be accomplished or for other purposes. Yhen, however. theturn table is to be rotated the operator by lifting slightly on thehandle 3J! the ends of the plungers will be lowered out of contact wi'ththe plates 2:2 permitting thereby free rotation ofthe turn table. Thelever 34 may thus be held in its highest position b v any convenientmeans and when set free its weight may be relied upon to cause the upperends of the plungers to bear against the plates or the bottom surface ofthe turntable and so be in position at all times to automatically engagein the holes 28 when the operator rotates the turntable bringing theholes into registry with the ends of the plungers.

l claim:

l. In a work table, the combination of a base, a turn table mountedthereon for rotation around an axis in a plane parallel to the base` aplurality of anti-friction rollers carried in the turn table normallybelow the upper surface thereof, and means acting through the baseserving to lock the turn table from rotation and to lift the rollersabove the surface of the table.

The herein described turn table having a plurality of slots formedtherein, anti-friction rollers carried m said slots with their uppersurfaces normally below the surface of the table, a plurality ofplungers for each roller` and means to force all of the plungers upwardsimultaneously to project the upper portions of the rollers above thesurface o the table, said plungers serving normally to prevent therotation of the turntable, substantially as set forth.

3. In a work table of the character set forth, the combination of abase, two pairs of vertical plungers operating through the base, a rockshaft mounted between the vertical planes of the two pairs of plungers,a pair of arms extending from the rock shaft into connection with thelower of plungers whereby when the shaft is roe tated said pair ofplungers will be lifted, means extending from the rock shaft to the endsof one pair' other pair of plungers to cause simultaneous upwardmovement of the other pair of plungers with the upward movement of thefirst pair, a table supported upon the base and having formed therein apair of slots into each of which slots a pair of plungers are adapted toproject, andan anti-friction roller journaled in each slot in positionto be lifted by the plungers.

f-l. ln a turntable construction, the combination of a base, a turntablehaving formed therein a pair of parallel slots, a cradle mounted in eachslot, an anti-friction roller journaled in each cradle, pairs ofplungers fitted for Vertical movement through the base, the bottom ofthe turntable being formed with holes adapted to register with the`upper ends of the plungers permitting the ends of the plungers to bearupward against the bottoms of the cradles, and means to elevate all ofthe plungers simultaneously to raise both anti-friction rollers abovethe surface of the turntable, one of the rollers being elevated higherthan the other.

JOHN BUCHHEIT.

